WO2000024564A1 - Thermoscellage de films sur des barquettes - Google Patents

Thermoscellage de films sur des barquettes Download PDF

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Publication number
WO2000024564A1
WO2000024564A1 PCT/US1999/023133 US9923133W WO0024564A1 WO 2000024564 A1 WO2000024564 A1 WO 2000024564A1 US 9923133 W US9923133 W US 9923133W WO 0024564 A1 WO0024564 A1 WO 0024564A1
Authority
WO
WIPO (PCT)
Prior art keywords
tray
upper edge
film
flattening
sealing
Prior art date
Application number
PCT/US1999/023133
Other languages
English (en)
Inventor
Michael Gorlich
Original Assignee
World Class Packaging Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by World Class Packaging Systems, Inc. filed Critical World Class Packaging Systems, Inc.
Priority to AU11016/00A priority Critical patent/AU1101600A/en
Priority to BR9914737A priority patent/BR9914737A/pt
Priority to EP19990954738 priority patent/EP1123193A1/fr
Priority to CA 2347969 priority patent/CA2347969A1/fr
Publication of WO2000024564A1 publication Critical patent/WO2000024564A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/045—Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases

Definitions

  • This invention relates generally to sealing films to trays made of plastic or foam.
  • a film material such as a plastic, paper or foil film
  • a tray made of plastic, foam or other heat sealable materials.
  • many trays such as foam trays generally are not closed by sealing a film to the tray upper edges. Instead, the tray is simply overwrapped with a plastic material which adheres to the tray.
  • a method of sealing a film to a tray having an upper edge includes flattening the upper edge of the tray. A film is then sealed to the flattened upper edge of the tray.
  • Figure 1 is a perspective view of a tray in accordance with the prior art
  • Figure 2 is an enlarged, partial, cross-sectional view taken generally along the line 2-2 in Figure 1 ;
  • Figure 3 is an enlarged, cross-sectional view taken generally along the line 3-3 in Figure 1;
  • Figure 4 is an enlarged, cross-sectional view of one embodiment of the invention in the course of flattening the upper edge of the tray;
  • Figure 5 is an enlarged, cross-sectional view of the tray after the flattening shown in Figure 4;
  • Figure 6 is an enlarged, cross-sectional view of the tray in Figure 5 with a film positioned over the tray
  • Figure 7 is an enlarged, cross-sectional view of the tray shown in Figure 6 with the film in the course of being sealed to the tray;
  • Figure 8 is an enlarged, cross-sectional view of the tray shown in Figure 7 with excess film being severed; and Figure 9 is a enlarged, cross-sectional view of one embodiment of the invention after the film has been sealed to a tray.
  • a conventional packaging tray 10 which may be used for packaging a variety of items including meat, is shown in Figure 1.
  • the tray 10 includes a plurality of sides 12 and a bottom 14.
  • the tray may also include an upper edge 16, which as shown in Figure 2, may be irregular. That is, the tray upper edge 16 may not lie entirely within a single plane. Therefore, sealing film to the tray may be difficult because the low regions 16a, shown in Figure 2, may not be properly sealed even if the raised regions 16b are properly sealed.
  • the tray 10 may be made of a variety of materials including foam such as polystyrene foam.
  • the tray may also be made of other plastic film materials such as the relatively rigid plastic film materials used to make packaging trays.
  • the upper edge of the tray may be irregular, at least in some cases, causing difficulties in obtaining a leak-proof seal between the film and the tray.
  • the film may be a heat sealable plastic film, a heat sealable foil or paper laminate film or any other film that may be used in closing packaging trays.
  • the upper edge 16 of the tray may be formed in a rounded bead shape.
  • relatively little space is provided to facilitate sealing the film to the tray. This combined with the possibility of irregularities in the upper surface 16 makes it difficult in many cases to seal the film to the tray reliably.
  • a conventional heat sealing tool may be applied to the upper edge 16 to form a flattened upper edge 16' as shown in Figure 4.
  • the tray may be supported using a conforming or partially conforming tray holder 13.
  • the tool 18 may have a lower edge which is generally planar and produces a relatively planar, flattened upper edge 16' around the entire periphery of the tray 10.
  • the heat sealing tool may apply sufficient temperature to soften the material forming the upper edge. It may be advantageous in embodiments wherein a food product is contained within the tray 10 to avoid having the heat sealing tool 18 overlap excessively over the interior of the tray. This could cause cooking of a food product in the tray.
  • the inner edge of the sealing bar 23 may be substantially aligned with the inner edge of a side 12.
  • the flattened edge 16 provides an ideal sealing surface.
  • the softening of the foam may tend to close the open cell foam used to make the tray. This results in a better seal between a film cover and the tray.
  • the sealing bar 18 has a non-stick surface.
  • a covering film 20 is then applied over the tray 10. The film may be secured by heat sealing, for example, to the tray 10 as indicated in Figure 7 using the seal bar 23.
  • the resulting structure includes the film 22 sealed at 28 to the side edges 12 of the tray 10 at the flattened upper edge 16'. Thereafter, the excess film is severed from the rest of the tray using a severing device 24.
  • the severing device may use heat, for example.
  • the finished package 30, shown in Figure 9, may include a seal 28 which connects an overlying film 22 to the tray 10.
  • the reliability of that seal may be enhanced because of the flattening of the upper edge of the tray.
  • This flattening provides a planar sealing surface which may be reliably sealed using high speed equipment.
  • the flattening may close cells, in the case of open cell foam trays, resulting in a better seal.
  • the residual heat applied in the step shown in Figure 4 may be used to facilitate the sealing of the film to the tray 10, as shown in Figure 7. That is, the residual heat in the tray 10 may facilitate the high speed sealing of the film 22 to the tray 10 if the sealing is done close enough in time to the flattening of the upper edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Package Closures (AREA)
  • Closing Of Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

Un film (20) peut être appliqué par thermoscellage sur une barquette (10) par aplatissement d'un bord supérieur (16) de la barquette, en vue de produire une surface de thermoscellage plane (16'). Le film (20) peut ensuite être thermoscellé à cette surface de thermoscellage plane. L'opération d'aplatissement peut être réalisée à l'aide d'un appareil de thermoscellage sous haute température et peut entraîner la fermeture des alvéoles des barquettes en plastique à alvéoles ouvertes. La chaleur utilisée dans l'étape d'aplatissement peut en outre contribuer à faciliter le thermoscellage du film sur la barquette, si la succession des opérations s'effectue à une cadence suffisamment rapide.
PCT/US1999/023133 1998-10-23 1999-10-06 Thermoscellage de films sur des barquettes WO2000024564A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU11016/00A AU1101600A (en) 1998-10-23 1999-10-06 Sealing films to trays
BR9914737A BR9914737A (pt) 1998-10-23 1999-10-06 Filmes de vedação para bandejas
EP19990954738 EP1123193A1 (fr) 1998-10-23 1999-10-06 Thermoscellage de films sur des barquettes
CA 2347969 CA2347969A1 (fr) 1998-10-23 1999-10-06 Thermoscellage de films sur des barquettes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/177,741 1998-10-23
US09/177,741 US20010007273A1 (en) 1998-10-23 1998-10-23 Sealing films to trays

Publications (1)

Publication Number Publication Date
WO2000024564A1 true WO2000024564A1 (fr) 2000-05-04

Family

ID=22649813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/023133 WO2000024564A1 (fr) 1998-10-23 1999-10-06 Thermoscellage de films sur des barquettes

Country Status (6)

Country Link
US (1) US20010007273A1 (fr)
EP (1) EP1123193A1 (fr)
AU (1) AU1101600A (fr)
BR (1) BR9914737A (fr)
CA (1) CA2347969A1 (fr)
WO (1) WO2000024564A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917930C (de) * 1950-09-14 1954-09-16 Sueddeutsche Kabelwerke Zweign Verfahren zur Herstellung von Baendern oder Folien aus poroesen thermoplastischen Kunststoffen
US3625785A (en) * 1968-04-10 1971-12-07 Tetra Pak Ab Method of producing a mechanically stiff gastight packaging container
FR2121436A1 (en) * 1971-01-13 1972-08-25 Saint Gobain Carnaud Flattening lips of plastic containers - by contacting with heated surface
GB1315472A (en) * 1970-02-11 1973-05-02 Sollerud S E M Manufacture of containers of rigid foamed plastics material
DE2904492A1 (de) * 1979-02-07 1980-08-21 Rissen Gmbh Maschf Verfahren zum erzeugen eines flachen, abgewinkelten randbereiches an der oeffnung eines bechers aus faserstoff
JPS562138A (en) * 1979-06-19 1981-01-10 Uchiyama Mfg Corp Foaming styrol board having melted bark layer
US5039567A (en) * 1989-12-04 1991-08-13 Supracor Systems, Inc. Resilient panel having anisotropic flexing characteristics and method of making same
EP0582461A1 (fr) * 1992-08-06 1994-02-09 Idemitsu Petrochemical Co. Ltd. Procédé et dispositif pour soudure à chaud les récipients
WO1998009796A1 (fr) * 1996-09-02 1998-03-12 Koninklijke Emballage Industrie Van Leer N.V. Recipient en plastique etire et procede de fabrication associe

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917930C (de) * 1950-09-14 1954-09-16 Sueddeutsche Kabelwerke Zweign Verfahren zur Herstellung von Baendern oder Folien aus poroesen thermoplastischen Kunststoffen
US3625785A (en) * 1968-04-10 1971-12-07 Tetra Pak Ab Method of producing a mechanically stiff gastight packaging container
GB1315472A (en) * 1970-02-11 1973-05-02 Sollerud S E M Manufacture of containers of rigid foamed plastics material
FR2121436A1 (en) * 1971-01-13 1972-08-25 Saint Gobain Carnaud Flattening lips of plastic containers - by contacting with heated surface
DE2904492A1 (de) * 1979-02-07 1980-08-21 Rissen Gmbh Maschf Verfahren zum erzeugen eines flachen, abgewinkelten randbereiches an der oeffnung eines bechers aus faserstoff
JPS562138A (en) * 1979-06-19 1981-01-10 Uchiyama Mfg Corp Foaming styrol board having melted bark layer
US5039567A (en) * 1989-12-04 1991-08-13 Supracor Systems, Inc. Resilient panel having anisotropic flexing characteristics and method of making same
EP0582461A1 (fr) * 1992-08-06 1994-02-09 Idemitsu Petrochemical Co. Ltd. Procédé et dispositif pour soudure à chaud les récipients
WO1998009796A1 (fr) * 1996-09-02 1998-03-12 Koninklijke Emballage Industrie Van Leer N.V. Recipient en plastique etire et procede de fabrication associe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 043 (M - 060) 23 March 1981 (1981-03-23) *

Also Published As

Publication number Publication date
EP1123193A1 (fr) 2001-08-16
AU1101600A (en) 2000-05-15
CA2347969A1 (fr) 2000-05-04
BR9914737A (pt) 2001-11-06
US20010007273A1 (en) 2001-07-12

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